Role of sodium citrate in leaching of low-grade and multiphase zinc oxide ore in ammonia–ammonium sulfate solution

Yang, Kun; Zhang, Libo; Lv, Chao; Peng, Jinhui; Li, Shiwei; Ma, Aiyuan; Chen, Weiheng; Xie, Feng

doi:10.1016/j.hydromet.2017.03.013

Cited by 26 publications

(6 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2 Mining Engineering Department, Tarbiat Modares University, Tehran, Iran. 3 Academic Center for Education, Culture and Research (ACECR) On TMU, Tehran, Iran. 4 Institute of Research and Development, Duy Tan University, Da Nang 550000, Viet Nam.…”

Section: Openmentioning

confidence: 99%

“…The importance of zinc oxide ores processing such as carbonate and silicates minerals have increased because of the depletion of zinc sulphide ores and the restriction on sulphur emissions during their processing [1][2][3][4][5][6] . The zinc oxide ores usually contain several different minerals including zincite (ZnO), smithsonite (ZnCO 3 ), hydrozincite (2ZnCO 3 •3Zn(OH)), hemimorphite (Zn 4 Si 2 O 7 (OH) 2 •H 2 O), and willemite (Zn 2 SiO 4 ) 2 . Producing a concentrate from zinc oxide ores can be performed using flotation or gravity methods 7 .…”

mentioning

confidence: 99%

See 1 more Smart Citation

Leaching and solvent extraction purification of zinc from Mehdiabad complex oxide ore

Soltani

Darabi

Aram

et al. 2021

Sci Rep

View full text Add to dashboard Cite

An integrated hydrometallurgical process was used for the zinc leaching and purification from a zinc ore containing 9.75 wt% zinc. The zinc minerals in the ore were hemimorphite, willemite, and calcophanite. Main gangue minerals were quartz, goethite, hematite, and calcite. Central composite design (CCD) method was used to design leaching experiments and the optimum conditions were found as follows: 30% of solid fraction, 22.05% sulphuric acid concentration, and the leaching temperature of 45 °C. The PLS containing 35.07 g/L zinc, 3.16 g/L iron, and 4.58 g/L manganese impurities was produced. A special purification process including Fe precipitation and Zn solvent extraction was implemented. The results showed that after precipitation of iron, Zn extraction of 88.5% was obtained with the 2 stages extraction system composed of 30 vol% D2EHPA as extractant. The overall Zn recovery from the ore was 71.44%. Therefore, an appropriate solution containing 16.6 g/L Zn, 0.05 g/L Fe, and 0.11 g/L Mn was prepared for the electro-winning unit without using the roasting and calcination steps (conventional method), which result in environmental pollution.

show abstract

Section: Openmentioning

confidence: 99%

mentioning

confidence: 99%

Leaching and solvent extraction purification of zinc from Mehdiabad complex oxide ore

Soltani

Darabi

Aram

et al. 2021

Sci Rep

View full text Add to dashboard Cite

show abstract

“…The vibration frequencies for sodium citrate are shown in Table 3. All FTIR data was interpreted using corresponding literature data [17,[22][23][24][25][26].…”

Section: Ftir Datamentioning

confidence: 99%

“…The vibration frequencies for sodium citrate are shown in Table 3. All FTIR data was interpreted using corresponding literature data [17,[22][23][24][25][26]. Processes preventing the Al surface from reacting with water by a protective coating formed on the particle surface typically involve precipitation and adsorption.…”

Section: Ftir Datamentioning

confidence: 99%

See 1 more Smart Citation

Hydrogen Inhibition as Explosion Prevention in Wet Metal Dust Removal Systems

et al. 2022

View full text Add to dashboard Cite

Hydrogen energy attracts an amount of attention as an environmentally friendly and sustainable energy source. However, hydrogen is also flammable. Hydrogen fires and explosions might occur in wet-dust-removal systems if accumulated aluminum dust reacts with water. Hydrogen inhibition is a safe method to address these issues. For this purpose, we used sodium citrate, a renewable and nontoxic raw material to inhibit H2 formation. Specifically, hydrogen inhibition experiments with sodium citrate were carried out using custom-built equipment developed by our research group. When the concentration of sodium citrate solution was in the range of 0.4–4.0 g/L, a protective coating was formed on the surface of the Al particles, which prevented them from contacting with water. The inhibitory effect was achieved when the concentration of sodium citrate was in a certain range, and too much or too little addition may reduce the inhibitory effect. In this paper, we also discuss the economic aspects of H2 inhibition with this method because it offers excellent safety advantages and could be incorporated on a large scale. Such an intrinsic safety design of H2 inhibition to control explosions in wet-dust-removal systems could be applied to ensure the safety of other systems, such as nuclear reactors.

show abstract

Lead ion modification and its enhancement for xanthate adsorption on smithsonite surface

Zhang

Wen

Xian

et al. 2019

Applied Surface Science

View full text Add to dashboard Cite

Role of sodium citrate in leaching of low-grade and multiphase zinc oxide ore in ammonia–ammonium sulfate solution

Cited by 26 publications

References 28 publications

Leaching and solvent extraction purification of zinc from Mehdiabad complex oxide ore

Leaching and solvent extraction purification of zinc from Mehdiabad complex oxide ore

Hydrogen Inhibition as Explosion Prevention in Wet Metal Dust Removal Systems

Lead ion modification and its enhancement for xanthate adsorption on smithsonite surface

Contact Info

Product

Resources

About